Zomwe Zidatetezedwe Kuchuluka
M'nkhani yam'mbuyomu, tinayambitsa chimodzi mwazigawo za chipangizo choteteza chitetezo, chomwe ndi mtundu kapena kalasi. Mtundu wa 1 / 2 / 3 ndi gulu lofala kwambiri la SPD mwina muyezo wa UL kapena IEC. Mukhoza kubwereza nkhaniyi kudzera mwachitsulo ichi:
Ndipo mu nkhaniyi, tikuti tiyankhule zambiri za zigawo zina zomwe sizinafotokozedwe pa nkhaniyi.
AC SPD & DC / PV SPD
Mwachiwonekere, AC SPD ndiyofala kwambiri kuposa DC SPD popeza tonsefe timakhala pagulu momwe zinthu zamagetsi zambiri zimayendetsedwa ndi AC pakadali pano chifukwa cha a Thomas Edison. Mwina ndichifukwa chake muyeso wa IEC 61643-11 umangogwiritsidwa ntchito pazida zodzitchinjiriza za AC kwanthawi yayitali kulibe miyezo yoyenera ya IEC yothandizira chitetezo cha DC. DC SPD imadziwika ngati kukwera kwa mafakitale opanga magetsi padzuwa ndipo anthu amazindikira kuti kuyimitsidwa kwa PV kumakonda kugwidwa ndi mphezi chifukwa nthawi zambiri kumakhala pamalo otseguka kapena padenga. Chifukwa chake kufunika kwa zida zodzitetezera ku PV kugwiritsa ntchito kukukula mwachangu mzaka 10 zapitazi. Gawo la PV ndiye ntchito yofala kwambiri komanso yotchuka ya DC SPD.
Ogwira ntchito zodzitchinjiriza komanso bungwe lazindikira kuti kuyesa kwa IEC 61643-11 sikokwanira kwa PV SPD popeza kumangogwira ntchito yamagetsi otsika pansi pa 1000V. Komabe magetsi a PV amatha mpaka 1500V. Chifukwa chake, muyeso watsopano wotchedwa EN 50539-11 wakhazikitsidwa kuti athetse vutoli. IEC idachitanso izi ndipo idakhazikitsa IEC 61643-31 kuti igwiritse ntchito PV SPD mu 2018.
IEC 61643-11: 2011
Zipangizo zoteteza kutsika kwamagetsi - Gawo 11: Zipangizo zowonjezera zotetezedwa zolumikizidwa ndi makina amagetsi otsika - Zofunikira ndi njira zoyeserera
IEC 61643-11: 2011 imagwiritsidwa ntchito pa zipangizo zowonjezera kutetezedwa motsutsana ndi zomwe siziwonekere komanso zotsatira zowona za mphezi kapena zowonongeka. Zipangizozi zimagwiritsidwa ntchito kuti zigwirizane ndi ma pulaneti a 50 / 60 Hz ac, ndi zipangizo zomwe zimagwiritsidwa ntchito ku 1 000 V rms Performance makhalidwe, njira zodziyesa ndi kuyesa zimakhazikitsidwa. Zidazi zili ndi mbali imodzi yosagwirizana ndi zina ndipo zimapangidwira kuchepetsa kuyendayenda ndi kuyendetsa mafunde oyendayenda.
IEC 61643-31: 2018
Zipangizo zoteteza kutsika kwamagetsi - Gawo 31: Zofunikira ndi njira zoyeserera za SPD pazoyika za photovoltaic
IEC 61643-31: 2018 imagwira ntchito ku Surge Protective Devices (SPDs), yomwe cholinga chake ndi kutchinjiriza kuwopsa kwa mphezi kapena kuwonongeka kwakanthawi. Zipangizozi zimapangidwa kuti zizilumikizidwa ku mbali ya DC yamafakidwe a photovoltaic omwe adavoteledwa mpaka 1 500 V DC. Zipangizozi zimakhala ndi chinthu chimodzi chopanda mzere ndipo cholinga chake ndikuchepetsa kuchuluka kwa mafunde ndikusintha mafunde oyenda. Makhalidwe, magwiridwe antchito achitetezo, njira zoyeserera ndi kuwerengera zimakhazikitsidwa. Ma SPD omwe amatsata mulingowu amaperekedwa kokha kuti akhazikitsidwe mbali ya DC yamagetsi opanga photovoltaic ndi mbali ya DC ya ma inverters. Ma SPD amachitidwe a PV okhala ndi zosungira zamagetsi (mwachitsanzo mabatire, ma capacitor bank) sanaphimbidwe. Ma SPD okhala ndi malo osiyana omwe amalowetsera komanso kutulutsa omwe ali ndi kutulutsa pakati pamayendedwe awa (omwe amatchedwa ma SPD awiri-doko malinga ndi IEC 61643-11: 2011) sanaphimbidwe. Ma SPD omwe amatsata ndondomekoyi apangidwa kuti azilumikizidwa kosatha pomwe kulumikizidwa ndi kudulidwa kwa ma SPD okhazikika kumatha kuchitidwa pogwiritsa ntchito chida. Mulingo uwu sugwira ntchito kuma SPD onyamula.
Izi ndimasintha muyezo wa IEC. Mu standard UL, tsamba laposachedwa la UL 1449 4th linayambitsa zomwe zili mu PV SPD zomwe zinalibe mu edition la 3rd. Kotero potsiriza, mabungwe onse ofanana adayambitsa miyezo yawo ya chipangizo chotetezera cha DC / PV.
Tiyeni tiwone ma PD SPD a Prosurge.
Kuti mudziwe zambiri za Chipangizo cha DC / PV chitetezo, chonde pitani tsamba ili:
Chiwerengero cha Chitetezo Chokwanira ndi Mapulogalamu
Mwachizolowezi, zipangizo zoteteza chitetezo zingathe kusankhidwa ndi ntchito monga:
- SPD ya magetsi
- SPD ya Signal
- SPD ya Video
- SPD ya Network
- Ect
Pano tikhoza kuona zithunzi za SPD muzinthu zoterezi.
SPD ya Kuwonjezera Mphamvu
SPD ya Signal
SPD ya Ethernet
SPD ya Video
Zolemba za SPD ndi Kuwonetsa / Kuonekera
Kawirikawiri, kuphatikizapo mtundu wa 3 SPDs umene nthawi zambiri umatchula mphamvu zogwiritsira ntchito mphamvu ndi zowonongeka ndi kutenga mapulogalamu. Pali zipilala ziwiri zofanana: DIN-railing mounting ndi panel mounting. Nawa zithunzi za SPIN zowonongeka ndi SPD ndi SPD yowonjezera gululi.
Titha kuzindikira kuti ali ndi zidziwitso zosiyana.
SPD Yoyendera Panja
DIN-rail mounted SPD
Tiyeni tiwone zina mwazithunzi zawo kuti timvetsetse momwe ma SPD amaikidwira.
SPD Yoyendera Panja
DIN-rail mounted SPD
Chidule
M'nkhaniyi, tikukambirana zambiri pazokambirana za chitetezo chokwanira. Timakambirana za mtundu wa AC / DC, mwa kugwiritsa ntchito ndi pomangidwe. Inde, palinso miyezo ina yowerengera ndipo ndi yovomerezeka. Tikukhulupirira kuti nkhaniyi ikuthandizani kumvetsetsa bwino chipangizo choteteza chitetezo.